When work is done on an object, the object gains energy. true or false

Answers

Answer 1
Answer: True. When work is done on an object, the object gains energy
Answer 2
Answer:

Answer:

True

Explanation:

i took the quiz


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A spherical electron cloud surrounding an atomic nucleus would best represent

Answers

The s, p, d, and f orbitals are the areas where electrons will be most likely found. These letters give us an idea of the shapes of these formed by the electron clouds. Going by this, a spherical electron cloud surrounding an atomic nucleus would best represent an;

  • a. s Orbital

The s Orbital has spherical symmetry and is located around the nucleus of an element.

As there becomes an increase in the energy levels, the size of the orbital increases, leading to the extension of the electrons further away from the nucleus.

The angular quantum number (l) of the s subshell is 0. When fixed into the equation; 2 (2l + 1), the maximum number of electrons that this subshell can hold is 2.

Learn more here:

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Answer:

a S orbital

Explanation:

Atomic orbitals is the place where we are most likely to find at least one electron, this definition is based on the equation posed by Erwin Schrödinger.

It is said that each electron occupies an atomic orbital that is defined by a series of quantum numbers s, n, ml, ms. In any atom each orbital can contain two electrons. It is possible that thanks to the function of the orbitals, the appearance that atoms can have is that of a diffuse cloud.

The orbitals s (l = 0) have a spherical shape. The extent of this orbital depends on the value of the main quantum number, so a 3s orbital has the same shape but is larger than a 2s orbital.

The orbitals p (l = 1) are formed by two identical lobes that project along an axis. The junction zone of both lobes coincides with the atomic nucleus. There are three orbitals p (m = -1, m = 0 and m = + 1) in the same way, which differ only in their orientation along the x, y or z axes.

The orbitals d (l = 2) are also formed by lobes. There are five types of d orbitals (corresponding to m = -2, -1, 0, 1, 2)

The image above shows the nucleus of a nitrogen atom. How can the atomic number of nitrogen be determined?A. count the humber of neutrons
B. Count the number of protons
C. Add the number of protons and neutrons
D. count the number of electrons

Answers

The atomic number of an atom is the
number of protons in its nucleus.

A 70 kilogram mountaineer is standing on the summit of Mt. Everest. The distance between the mountaineer and the center of Earth is 6.39 × 106 meters. What is the magnitude of the force of gravity acting on the mountaineer? (The value of G is 6.673 × 10-11 newton meter2/kilogram2. The mass of Earth is 5.98 × 1024 kilograms.)90.50 newtons



111.5 newtons



684.1 newtons



4041.7 newtons

Answers

The force due to gravity between two point masses is given by:
F = GMm/r²; where G is the gravitational constant, M is the larger mass, m is the smaller mass, and r is the distance between the two.
F =  (6.673 × 10⁻¹¹ × 5.98 × 10²⁴ × 70) / (6.39 × 10⁶)²
F = 684.1 N
 F = GMm/r² 

F = (6.673*10^-11)(5.98*10^24)(70)/(6.39*10^... 

F = 684 N (3sf)

Current can also be calleda. voltage.
b. electricity.
c. moving charges.
d.
b. and
c.

Answers

Electrical current is the flow of moving charges.
D. It is electricity and moving charges

When you whisper, you produce a 10-dB sound.a. When you speak quietly, your voice sounds twice as loud as a whisper. How many decibels is this?
b. When you speak normally, your voice sounds 4 times as loud as a whisper. How many decibels is this?
c. When you yell, your voice sounds 8 times as loud as a whisper. How many decibels is this?

Answers

All you would do is for a, 10 times 2 is 20 so it would be 20-dB
For b, 10 times 4 is 40 so it would be 40-dB
For c, 10 times 8 is 80 so it would be 80-dB

A small balloon containing baking soda has a mass of 4 grams. A student adds 10 ml. of vinegarto a 100 gram glass bottle. The student stretches the opening of the balloon over the mouth of
the bottle, mixing the baking soda and vinegar inside the bottle. Once the balloon is inflated, the
student finds the mass of the balloon, bottle, and their contents to be 116 grams. What was the
mass of the vinegar originally in the bottle
F.10g G.12g J.16g

Answers

Answer:

10 grams

Explanation:

I took a test with this question earlier.